Electric shaver



March 28 1950 E. E. DIETRICH 2,502,036

ELECTRIC SHAVER Filed Dec. 9, 1946 SWW/nto@ 1@ riefie ri'c L 7T 57. s, MM

Patented Mal'.l 28, 1950 UNITED s'rmezs PATENT omer.

ELECTRIC SHAVER Earle E. Dietrich, Portsmouth, Va.

Application December 9, 1946, Serial No. 714,999 2 claim.. (ci. sui-45) This invention relates to electric razors.

An object of this invention is to provide a razor embodying a razor blade and an electric operator for the blade wherein the blade forms the vibrating armature associated with the iron core of the device.

Another object of this invention is to provide an electric razor which can be used either dry or with lather, and which is designed for using conventional razor blades of either the single or double edge type.

A further object of this invention is to provide. an electric razor which uses the magnetic pulsations derived from alternating current to vibrate the razor blades, the latter being placed in juxtaposition with respect to the magnetized core so that the blade will be subjected to rapid and minute vibration.

A further object of this invention is to provide an electric razor which eliminates the make and break means of motors now in use so that the operator can be sealingly encased in a waterproof casing in order that the head portion of the device may be cleaned in Water without short circuiting the operator.

A further object of this invention is to provide an electric razor of simple construction which eliminates all moving parts so that the motor or operator will not get out of order and will last indefinitely.

With the above and other objects in view, my invention consists in the arrangement, combination and details of construction disclosed in the drawings and specification, and then more particularly pointed out in the appended claims.

In the drawing,

Figure l is a detail front elevation, partly broken away, of an electric razor constructed according to an embodiment of this invention,

Figure 2 is a detail side elevation of the device,

Figure 3 is a fragmentary sectional view taken on the line 3-3 of Figure 2,

Figure 4 is a diagrammatic view of the operator embodied in this invention,

Figure 5 is a view similar to Figure 4, but at right angles to the latter,

Figure 6 is a diagrammatic view of a, modified form of this invention.

Referring to the drawing, the numeral It designates generally an electric operator which includes a winding or coil II having a U-shaped core I2. The core I2, at its upper end, is formed with confronting extensions I3 which are spaced apart at their inner ends so as to thereby form an air gap Il.

The coil II is adapted to be connected to a source of alternating current supply and the pulsations of the cyclic current are adapted to be utilized in the vibratory Aoperation of a razor blade, as will be hereinafter described.

The operator I0 ,has the coil II thereof encased in a casing or handle I5 which is of suitable configuration and length, and the lead wires I8 from the coil Il are extended downwardly through the handle I5 and connected to contact members I1 in the lower or rear end of the handle I'5. A plug or connector I8, having a pair of conductors I9 connected thereto, is adapted to be engaged with the contacts I1 and connected to a source of alternating current supply.

The outer portion or extensions I3 of the core I2 have mounted thereon a blade holder generally designated as 20. The holder 20 includes an inner plate 2| formed .at the opposite ends with ears 22 engaging on the outer sides of the parallel legs of the core I2, and the plate 2| is formed with a front flange 23 having spaced ribs 2l. A centrally disposed depending ear or lug 25 is carried by the flanges 23 and is adapted to be secured to the extensions I3 of the core I2 by means of a rivet or fastening member 26.

Suitable insulating means may be interposed between the ends of the fastening member 26 so that the air gap Il between the ends of the extensions I3 will be maintained. The holder 2l is preferably formed of non-magnetic material so that the holder will not serve as a bridge between the ends oi the core extensions I3. The holder 20 is also formed with a downwardly and rearwardly extending ribbed plate 21 having ribs 28 adapted to extend over the top of a blade 29. The blade 29 is removably mounted in the slot 30 formed at the ends of the upper plate 21 and the ends oi the plate 2i, including the flanges 22;

The cutting edge 3i of the blade 23 is adapted to overlie the ribs 24 and overlie the extensions I3 so that when the core I2 is energized, the magnetism thereof will be communicated to the blade '29. In this manner the blade 29 will be subjected to the same cyclic vibration as occurs in the core I2, due to the alternating current passing through the electro-magnetic coil II.

As will be noted from Figure 5, the outer edges of the core extensions I3 are also formed with spaced air gaps 32 so that these core extensions will be placed under the desired vibratory operation when the coil l I is energized.

As will be noted from Figure 1, the handle I5 is disposed at an obtuse angle to the core I2.

this angle being provided to facilitate the engagement of the blade 29 when the device is in use.

Referring now to Figure 6, there is disclosed a modified form of this invention which is designed i'or use with double edged blades. A motor or operator I Ila is provided, which has a coil IIa and a U-shaped core |2a is adapted to be magnetized when the coil II is energized. The outer free ends of the core I2a are disposed in relatively close proximity to the opposite cutting edges of a double edged blade 33, which is supported by means of a holder 3l.

In the use and operation of this razor, the conductor I9 is connected to a source of alternating current supply thereby energizing the electro-magnetic coil II. When the coil II is energized, core I2 will be magnetized and under cyclic vibration, this vibration being communicated to the core extensions I3. When the core extensions I3 are magnetized and under the cyclic pulsations of the electric current, blade 29 will be rapidly vibrated. The keen edge 3| may be moved over the face, and if desired, the face may -be coated with lather or the face may be dry. TheV rapid pulsations of the blade 29 will provide the necessary movement of the blade so that it will cut the hairs as the blade is moved over the skin surface.

Where lather or cream is used on the skin, the head of the device, which comprises the holder 2li, may be placed in water or under a stream of water to clean the same, and due to the fact that there are no moving parts in the device, aside from the pulsating blade, the immersing of the head of the razor in water or under a stream of water will not short circuit any of the parts of the razor. The coil Il is preferably encased in a waterproof casing, and if desired, the handle I may be made in two parts so Vthat if the coil should become burned out the coil can be replaced.

I do not mean to conne myself to the exact details of construction herein disclosed, but claim all variations falling within the purview of the appended claims.

What I claim is:

v 1. An electric razor comprising an electromagnetic operator adapted to be connected to an alternating current supply sourcesaid operator comprising a coil and a U-shaped core having confronting extensions, a combined resilient armature and cutting blade suspendingly supported adjacent to said core extensions and within the electro-magnetic field of said core and adapted to vibrate at right angles to the longitudinal axis of said blade whereby the electro-magnetic pulsations of said core will be directly communicated to said combined amature and cutting blade causing said combined armature and cutting blade to vibrate at right angles to its longitudinal axis.

2. An electric razor" comprising an electromagnetic operator adapted to be connected to an alternating current supply source, said operator comprising a coil and a U-shaped core.

having confronting extensions, a combined resilient armature and cutting blade, means suspendingly supporting said combined armature and blade transversely of, and in close proximity to, said core extensions and within the electromagnetic field of said core, and adapted to allow resilient movement of said armature and blade only at right angles to the longitudinal axis of said blade whereby the electro-magnetic pulsations of said core will be communicated directly to said combined armature and blade causing said blade to vibrate at right angles to the longitudinal axis of said blade.

EARLE E. DIETRICH.

' REFERENCES CITED The following references are of record in the iile of this patent:

UNI'I'ED STA'I'ES PATENTS Number Name t Date 2,301,147 Schaaf NOV. 3, 1942 FOREIGN PATENTS Number Country Date 540,660 Germany D80. 28, 1931 

